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Finding the Fourth Proportional to 356,848.80, 534,658.80 and 188,119.20

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Solution

The fourth proportional to 356,848.80, 534,658.80 and 188,119.20 is: 281,854.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,848.80 : 534,658.80 = 188,119.20 : x
  2. Step 2: Convert to fraction form
    356,848.80/534,658.80 = 188,119.20/x
  3. Step 3: Cross multiply
    356,848.80x = 534,658.80 × 188,119.20
  4. Step 4: Simplify right side
    356,848.80x = 100,579,585,728.96
  5. Step 5: Solve for x
    x = 100,579,585,728.96/356,848.80
  6. Step 6: Final answer
    x = 281,854.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.